Search results for "Arity"
showing 10 items of 2893 documents
Wpływ traktatu lizbońskiego na regulacje imigracyjne UE ze szczególnym uwzględnieniem zasady solidarności i sprawiedliwego podziału odpowiedzialności…
2018
Analysis of the influence of the Treaty of Lisbon on the EU immigration reguiations with particular attention to the principle of solidarity and fair sharing of responsibility between Member States indicates that the Treaty of Lisbon extensively reformed these reguiations. Its premise and mechanisms should be assessed as justified. However, they give a lot ofleeway for interpretation and need to be supplemented with EU secondary law. Unfortunately, States are primarily driven by their interest when applying these rules which leads to their nonproductiveness. The recent migration crisis explicitly proves this. The reason for the above can be found, among other things, in attachment to classi…
Trend Following with Momentum Versus Moving Average: A Tale of Differences
2018
Despite the ever-growing interest in trend following and a series of publications in academic journals, there is still a great shortage of theoretical results on the properties of trend following rules. Our paper fills this gap by comparing and contrasting the two most popular trend following rules, the Momentum (MOM) and Moving Average (MA) rules, from a theoretical perspective. Our approach is based on the return-based formulation of trading rules and modelling the price trends by an autoregressive return process. We provide theoretical results on the similarity between various trend following rules and the forecast accuracy of trading rules. Our results show that the similarity between t…
Portable central baffle flume
2022
This paper investigated the hydraulic characteristics of the triangular central baffle (TCB) flume. Laboratory tests were carried out to determine the flume dimensions. The field applicability of the proposed portable device was examined by on-farm installation. According to the laboratory tests, when the contraction ratio, r, was less than 0.39, the flow capacity was not affected by the ratio between the flume’s floor height and the throat width. The laboratory analysis also showed that there was no significant effect of installing an entrance ramp on the stage-discharge relationship for r<0.39, while the entrance ramp increased the discharge capacity for r>0.39. The stage-discharge …
Singular Neumann (p, q)-equations
2019
We consider a nonlinear parametric Neumann problem driven by the sum of a p-Laplacian and of a q-Laplacian and exhibiting in the reaction the competing effects of a singular term and of a resonant term. Using variational methods together with suitable truncation and comparison techniques, we show that for small values of the parameter the problem has at least two positive smooth solutions.
Multiple solutions for (p,2)-equations at resonance
2019
We consider a nonlinear nonhomogeneous Dirichlet problem driven by the sum of a p-Laplacian and a Laplacian and a reaction term which is (p− 1)-linear near ±∞ and resonant with respect to any nonprincipal variational eigenvalue of (−∆p, W01,p(Ω)). Using variational tools together with truncation and comparison techniques and Morse Theory (critical groups), we establish the existence of six nontrivial smooth solutions. For five of them we provide sign information and order them.
Comparative Study of Different Column Types for the Separation of Polar Basic Hallucinogenic Alkaloids
2016
The number of hallucinogenic compounds that have been separated simultaneously by liquid chromatography is limited. This research aimed to identify a column(s) that can allow for separation of several hallucinogens. The extent of separation of seven polar hallucinogenic tryptamine and phenethylamine derived alkaloids containing a basic N atom that becomes protonated at low pH values were investigated on five reverse-based columns and one hydrophilic interaction liquid chromatography (HILIC) column. An RP-phenyl and a negatively charged fused core HILIC were identified and recommended as effective columns in this regard. This research is the first to introduce a HILIC column in separation of…
Ab initio study of tungsten trioxide WO3 in volume and surface area
2012
The structure and stability of different crystallographic phases of tungstentrioxide and the effect of potassium doping have been studied using ab initiocalcuations, both in the bulk and at the surface. The study was motivatedby experimental works on the growth of WO3 nanorods on a mica substrate.The nanorods adopt a hexagonal phase, which is metastable in bulk WO3.The first part of the manuscript reports the study of bulk WO3. For thehexagonal and monoclinique phase, the atomic structure is deterimined andcompared with different models that have been proposed in the experimentalliterature. The relative stability of the two phases is calculated as a functionof potassium doping. From this an…
Kultura i więzi społeczne. Przypadek Tunezji
2020
Artykuł ukazuje przemiany więzi społecznej wtrzech wymiarach: pokrewieństwa, więzi wynikającej zwyboru uczestnictwa iwięzi uczestnictwa organicznego. Te trzy wyróżnienia więzi zostały przedstawione wkontekście solidarności idaru oraz dokonujących się transformacji. Więzi pokrewieństwa akcentują pochodzenie, więzi wynikające zwyboru uczestnictwa oznaczają kontakty jednostek zinnymi osobami, również grupami iinstytucjami od których nabywa wiedzę, awięź uczestnictwa organicznego charak-teryzuje się uczeniem iwykonywaniem określonej funkcji worganizacji pracy. Dokonujące się przemiany nie wyrugowały zasady wzajemnej pomocy rodzinnej isolidarności między generacjami, przybierając różne formy wza…
A cultural comparison study of smartphone adoption in Uzbekistan, South Korea and Turkey
2017
Smartphone popularity is increasing due to the technological advances that mean manufacturers can make more sophisticated devices, and telecommunication companies can provide better connections. Gartner reported that 403 million smartphones were sold in the fourth quarter of 2015, a 9.7% increase over the same period in 2014. It is a common perception that users tend to utilise advanced technology to increase productivity. However, there are studies indicating quite opposite or alternatively slow rates of adoption. To avoid this, companies invest in studying consumer behaviour. The purpose of the study is to examine the effects of drivers and cultural differences on smartphone acceptance in…
States of mourning: A quantitative analysis of national mournings across European countries
2018
Despite their growing incidence over the last decades, national days of mourning received curiously sparse attention throughout social sciences and death studies. This study investigates the 327 national mournings observed across European countries between 1989 and 2017 in terms of their national variance, temporal dynamics, typology of events that led to their declaration, and victimology. Drawing on a Durkheimian-inspired conceptualization of national mournings as political rites of solidarity and reconciliation, this article finds empirical support for the thesis that the frequency with which European countries declare national mourning is a negative function of a society's level of soci…